import store from '@/store'
import config from '@/config'
import { getToken } from '@/utils/auth'
import errorCode from '@/utils/errorCode'
import { toast, showConfirm, tansParams } from '@/utils/common'
import ApiModal from '@/plugins/modal'

let timeout = 30000
const baseUrl = config.baseUrl

// 处理数据，去除字符串值的前后空格
const trimData = (data) => {
  if (!data) return data;
  if (typeof data !== 'object') return data;
  
  const result = Array.isArray(data) ? [] : {};
  for (const key in data) {
    if (Object.prototype.hasOwnProperty.call(data, key)) {
      const value = data[key];
      if (typeof value === 'string') {
        result[key] = value.trim();
      } else if (typeof value === 'object' && value !== null) {
        result[key] = trimData(value);
      } else {
        result[key] = value;
      }
    }
  }
  return result;
}

const request = config => {
  // 是否需要设置 token
  const isToken = (config.headers || {}).isToken === false
  config.header = config.header || {}
  config.header['client-type'] = 'PDA'
  if (getToken() && !isToken) {
    config.header['Authorization'] = 'Bearer ' + getToken()
  }
  // get请求映射params参数
  if (config.params) {
    let url = config.url + '?' + tansParams(trimData(config.params))
    url = url.slice(0, -1)
    config.url = url
  }
  return new Promise((resolve, reject) => {
    uni.request({
      method: config.method || 'get',
      timeout: config.timeout || timeout,
      url: config.baseUrl || baseUrl + config.url,
      data: trimData(config.data),
      header: config.header,
      dataType: 'json'
    }).then(response => {
      let [error, res] = response
      if (error) {
        ApiModal.confirmClose('后端接口连接异常')
        reject('后端接口连接异常')
        return
      }
      const code = res.data.code || 200
      const msg = errorCode[code] || res.data.msg || errorCode['default']
      if (code === 401) {
        showConfirm('登录状态已过期，请重新登录')
        store.dispatch('LogOut').then(res => {
          uni.reLaunch({ url: '/pages/login' })
        })
      } else if (code === 500) {
        ApiModal.confirmClose(msg)
        ApiModal.closeLoading()
        uni.hideLoading()
        reject(res.data)
      } else if (code !== 200) {
        ApiModal.confirmClose(msg)
        ApiModal.closeLoading()
        reject(code)
      }
      resolve(res.data)
    })
      .catch(error => {
        let { message } = error
        if (message === 'Network Error') {
          message = '后端接口连接异常'
        } else if (message.includes('timeout')) {
          message = '系统接口请求超时'
        } else if (message.includes('Request failed with status code')) {
          message = '系统接口' + message.substr(message.length - 3) + '异常'
        }
        ApiModal.confirmClose(message)
        ApiModal.closeLoading()
        reject(error)
      })
  })
}

export default request
